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Today Apple filed a lawsuit against HTC, the maker of the HTC phones and Nexus one. The lawsuits states thats there are 20 different patent infringements related to the iPhone OS, anchitecture, and hardware.

In the release, Steve Jobs says, "We can sit by and watch competitors steal our patented inventions, or we can do something about it. We've decided to do something about it...We think competition is healthy, but competitors should create their own original technology, not steal ours."

From The Business Insider,

Earlier, we supposed that Apple's multi-touch user interface could be the basis for the lawsuit. But after examining the complaint, it appears that Apple is NOT suing over multitouch, but rather a bunch of other software. (When Steve Jobs unveiled the iPhone, he touted its multitouch screen, then said, "And boy, have we patented it.")

It will be interesting to see how things play out. Apple is already involved in suits with Nokia over patent infringement claiming they also have stolen Apple's technology. Nokia is suing Apple in return claiming the same thing as well as Kodak who is suing Apple for stealing their technology.